Question

The Sun has an apparent visual magnitude of mV​=−27 and is 150×106 km from the Earth. If the Sun were instead at a distance of 3pc, what would its apparent magnitude be? Recall that one parsec (pc) is 3.09×1016 m.

Answer 1

When the Sun ia at a distance of 3 Pc(persec), it's apparent magnitude would be approximately -6.25.